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src/app/modules/songs/services/upload.service.ts

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+import {Injectable} from '@angular/core';
+import {Upload} from './upload';
+import {FileDataService} from './file-data.service';
+import {AngularFireStorage} from '@angular/fire/storage';
+import {finalize} from 'rxjs/operators';
+import {FileBase} from './fileBase';
+import {FileServer} from './fileServer';
+
+
+@Injectable({
+  providedIn: 'root'
+})
+export class UploadService extends FileBase {
+
+  constructor(private fileDataService: FileDataService, private angularFireStorage: AngularFireStorage) {
+    super();
+  }
+
+  public async pushUpload(songId: string, upload: Upload) {
+    const directory = this.directory(songId);
+    const filePath = `${directory}/${upload.file.name}`;
+    upload.path = directory;
+
+    const ref = this.angularFireStorage.ref(filePath);
+    const task = ref.put(upload.file);
+
+    task.percentageChanges().subscribe(percent => upload.progress = percent);
+    task.snapshotChanges().pipe(
+      finalize(() => {
+        this.saveFileData(songId, upload);
+      })
+    ).subscribe();
+
+    // const storageRef = storage().ref();
+    // const uploadTask = storageRef.child(`${this.basePath}/${songId}/${file.file.name}`).put(file.file as any);
+    //
+    // uploadTask.on(storage.TaskEvent.STATE_CHANGED,
+    //   (snapshot) => {
+    //     file.progress = (snapshot.bytesTransferred / snapshot.totalBytes) * 100;
+    //   },
+    //   (error) => {
+    //     console.log(error);
+    //   },
+    //   () => {
+    //     file.url = uploadTask.snapshot.downloadURL;
+    //     file.name = file.file.name;
+    //     this.saveFileData(songId, file);
+    //   }
+    // );
+  }
+
+  private async saveFileData(songId: string, upload: Upload) {
+    const file: FileServer = {
+      name: upload.file.name,
+      path: upload.path,
+      createdAt: new Date()
+    };
+    await this.fileDataService.put(songId, file);
+  }
+}